One vertex per element, one color per generator, with an edge from x to x·s.
(1,2)(3,5)(4,9)(6,7)(8,11)(10,13)(12,14)(15,16)(17,18,23,20)(19,24,26,21)(22,25,31,28)(27,32,30,29)(34,38)(36,44)(39,41)(42,48)(2,7)(5,8)(9,14)(13,15)(17,19,23,26)(18,24,20,21)(22,30,31,27)(25,29,28,32)(33,34)(35,41)(36,40)(37,38)(39,43)(42,47)(44,45)(46,48)(4,12)(9,14)(10,16)(13,15)(19,26)(21,24)(27,30)(29,32)(33,34,37,38)(35,39,43,41)(36,40,44,45)(42,46,48,47)(1,3)(2,8)(4,10)(5,7)(6,11)(9,15)(12,16)(13,14)(17,20,23,18)(19,21,26,24)(22,28,31,25)(27,29,30,32)(33,34)(35,39)(36,40)(37,38)(41,43)(42,46)(44,45)(47,48)(1,4,6,12)(2,9,7,14)(3,10,11,16)(5,13,8,15)(17,21)(18,19)(20,26)(22,29)(23,24)(25,27)(28,30)(31,32)(33,35)(34,39)(36,42)(37,43)(38,41)(40,46)(44,48)(45,47)(1,5,6,8)(2,3,7,11)(4,13,12,15)(9,10,14,16)(17,22,23,31)(18,25,20,28)(19,27,26,30)(21,29,24,32)(33,36)(34,40)(35,42)(37,44)(38,45)(39,46)(41,47)(43,48)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.